Method of heat treating .gamma./.gamma.'-.alpha. eutectic nickel

Details Method of heat treating .gamma./.gamma.'-.alpha. eutectic nickel Method of heat treating .gamma./.gamma.'-.alpha. eutectic nickel

1977-11-25

1979-07-17

Dean, R.

Metal treatment

Compositions

Heat treating

148 203, 148 325, 148162, C22F 110

Patent

active

041614127

ABSTRACT:
A method of improving the mechanical properties of a .gamma./.gamma.'-.alpha. eutectic nickel-base superalloy body containing a .gamma.-phase, a .gamma.'-phase, and an aligned molybdenum fiber .alpha.-phase which comprises the steps (a) heating the body to a temperature at which at least a portion of the .gamma.'-phase will transform to a .gamma.-phase, (b) maintaining the heated body at said temperature to allow transformation of at least a portion of said .gamma.'-phase to a .gamma.-phase, and (c) cooling the transformed body to a temperature at which at least a portion of the .gamma.-phase precipitates as a modified .gamma.'-phase.

REFERENCES:
patent: 4012241 (1977-03-01), Lemkey

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